Improvement in the manufacture of leather belting



Patented Dec.l0,1872.

0.4i 0 000 00n0u0n0u000/ 00009009 l 0000000 000 wif-r M5555 UNITEDSTATES PATENT EFICE.

GEORGE O.- CLARK AND FRANK G. SLEMMER, OF PHILADELPHIA, PA.

IMPROVEMENTIN THE MANuFAc'ruRKE oF LEATHER BEL-rms.

Specification forming part of Letters Patent No. 133,698, dated December10, 1872.

To all rwhom it may concer-n:

Be it known'that we, GEORGE O. CLARK and FRANK G. SLEMMER, both of thecity and county of Philadelphia and `State of Pennsylvania, haveinvented a certain Improvement in the Manufacture of Leather Beltin g,of which the following is a specification:

rIhis invention is an improvement on that class of leather belting inwhich a strip of canvas or other textile fabric is introduced betweentwo or more layers ot' leather for the `purpose of' preventingstretching of the belt,

and to increase the durability ot' the same. Ourinvention consists infirst thoroughly saturating the canvas' with a composition such as isordinarily used in splicing belts by passmore closely into the fibers ofthe canvas. In

order to unite the parts more completely the stitching or rivetingprocess is used.

The difficult-y heretofore experienced has been that, where the cementhas been applied to the leather and canvas at the same time,

and pressure applied, the cement is forced or` squeezed from the canvasand absorbed by the leather to suchan extent as to destroyits adhesivequalities; whereas, in our process, the cement being irst applied to thecanvas and dried, it becomes set or fixed, so that when it is brought incontact with the hot cement on the leather the surface ot' the cement iswarmed sufficiently7 to make it hold withl greater tenacity withoutbeing absorbed entirely by the leather.

What we claim as our invention is- The improved method ot' manufacturingleather belting by thoroughly saturating the canvas or other textilefabric with cement and then introducing and pressing it between two ormore layers of leather, the said canvas having been allowed to drybefore applying it to the leather, substantially as and for the purposeset forth.

GEORGE O. CLARK. FRANK G. SLEMMER.

Witnesses IsAAe R. OAKEonD, IsAAc TOWNSEND.

